package com.lpc.framework.web.jcaptcha;

import java.awt.Color;
import java.awt.Font;
import java.awt.image.ImageFilter;

import com.octo.captcha.component.image.backgroundgenerator.BackgroundGenerator;
import com.octo.captcha.component.image.backgroundgenerator.UniColorBackgroundGenerator;
import com.octo.captcha.component.image.color.RandomListColorGenerator;
import com.octo.captcha.component.image.deformation.ImageDeformation;
import com.octo.captcha.component.image.deformation.ImageDeformationByFilters;
import com.octo.captcha.component.image.fontgenerator.FontGenerator;
import com.octo.captcha.component.image.fontgenerator.RandomFontGenerator;
import com.octo.captcha.component.image.textpaster.DecoratedRandomTextPaster;
import com.octo.captcha.component.image.textpaster.TextPaster;
import com.octo.captcha.component.image.textpaster.textdecorator.TextDecorator;
import com.octo.captcha.component.image.wordtoimage.DeformedComposedWordToImage;
import com.octo.captcha.component.image.wordtoimage.WordToImage;
import com.octo.captcha.component.word.FileDictionary;
import com.octo.captcha.component.word.wordgenerator.ComposeDictionaryWordGenerator;
import com.octo.captcha.component.word.wordgenerator.WordGenerator;
import com.octo.captcha.engine.image.ListImageCaptchaEngine;
import com.octo.captcha.image.gimpy.GimpyFactory;

/**
 * from
 * https://code.google.com/p/musicvalley/source/browse/trunk/musicvalley/doc/springSecurity/springSecurityIII/src/main
 * /java/com/spring/security/jcaptcha/GMailEngine.java?spec=svn447&r=447 JCaptcha验证码图片生成引擎,
 * 仿照JCaptcha2.0编写类似GMail验证码的样式.
 */
@SuppressWarnings("deprecation")
public class GMailEngine extends ListImageCaptchaEngine {

    @Override
    protected void buildInitialFactories() {

        // 图片和字体大小设置
        int minWordLength = 4;
        int maxWordLength = 5;
        int fontSize = 20;
        int imageWidth = 100;
        int imageHeight = 36;

        WordGenerator dictionnaryWords = new ComposeDictionaryWordGenerator(new FileDictionary("toddlist"));

        // word2image components
        TextPaster randomPaster =
                new DecoratedRandomTextPaster(minWordLength, maxWordLength, new RandomListColorGenerator(new Color[] {
                        new Color(23, 170, 27), new Color(220, 34, 11), new Color(23, 67, 172) }),
                        new TextDecorator[] {});
        BackgroundGenerator background = new UniColorBackgroundGenerator(imageWidth, imageHeight, Color.white);
        FontGenerator font =
                new RandomFontGenerator(fontSize, fontSize, new Font[] { new Font("nyala", Font.BOLD, fontSize),
                        new Font("Bell MT", Font.PLAIN, fontSize), new Font("Credit valley", Font.BOLD, fontSize) });

        ImageDeformation postDef = new ImageDeformationByFilters(new ImageFilter[] {});
        ImageDeformation backDef = new ImageDeformationByFilters(new ImageFilter[] {});
        ImageDeformation textDef = new ImageDeformationByFilters(new ImageFilter[] {});

        WordToImage word2image =
                new DeformedComposedWordToImage(font, background, randomPaster, backDef, textDef, postDef);

        addFactory(new GimpyFactory(dictionnaryWords, word2image));
    }

}